[i18n-activity] Use of CGJ

r12a has just created a new issue for https://github.com/w3c/i18n-activity:

== Use of CGJ ==
4.2 Override Mechanism for Exceptions
http://www.unicode.org/reports/tr53/

> The default display order implemented by the UAOA will be correct for most uses. However, these are situations where a different mark order is desired. In these cases, U+034F COMBINING GRAPHEME JOINER (CGJ) can be used to achieve the desired display order.

Question:
It isn't really clear to me, but i'm guessing that the expectation is that content authors will use the CGJ in their content prior to application of the UAOA rules, rather than as an additional step in ordering text per the UAOA rules. 

Editorial suggestion:
If that assumption holds, I'm surprised that the UAOA algorithm in section 3.2 doesn't mention that CGJ is a non-starter. For example, the step "Move any shadda characters ... to the beginning of S" should presumably not apply to a shadda that is preceded by CGJ.


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Please view or discuss this issue at https://github.com/w3c/i18n-activity/issues/498 using your GitHub account

Received on Wednesday, 4 October 2017 10:06:43 UTC